1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lapatulllka [165]
2 years ago
12

❥SCIENCE SUBJECT

Biology
1 answer:
Fiesta28 [93]2 years ago
4 0

9514 1404 393

Answer:

  • time: 1.122 seconds
  • range: 10.693 m
  • maximum height: 1.543 m

Explanation:

<u>Given</u>:

  runner is launched at 30° angle to horizontal at 11 m/s

  acceleration due to gravity is g = -9.8 m/s²

<u>Find</u>:

  runner's hang time

  runner's distance to the landing point

  runner's maximum height

<u>Solution</u>:

The (horizontal, vertical) speed components will be ...

  (11 m/s)(cos(30°), sin(30°)) = (5.5√3 m/s, 5.5 m/s)

The time of flight can be found from the height formula:

  h(t) = 1/2gt² +vt . . . . . . where v is the vertical speed at launch

The time we're concerned with is the time when h(t)=0 and t>0.

  0 = -4.9t^2 +5.5√3t = t(-4.9t +5.5√3)

The second factor is zero when ...

  t = (5.5√3)/4.9 ≈ 1.122 . . . seconds hang time

__

The distance to the landing point will be the product of horizontal speed and hang time:

  d = (5.5 m/s)(5.5√3/4.9 s) ≈ 10.693 m . . . . distance to landing

__

The maximum height can be found from the formula (based on conversion of kinetic energy to potential energy) ...

  h = v²/|2g| = (5.5 m/s)²/(2(9.8 m/s²)) ≈ 1.543 m . . . . maximum height

You might be interested in
E.Coli would be a good model organism to study how the cell membrane controls movement of substances in and out of cells?
hodyreva [135]

Answer:A.) True

Explanation:

E.Coli would be a good model organism to study how the cell membrane controls movement of substances in and out of cells because  it a eubacteria .Eubacteria characteristics include the ability to allow the movement of molecules across its membrane once a proton gradient is established , The membrane also has permeability enhancing properties that allow for the easy movement of substances.

4 0
3 years ago
3) Two plants are grown using the same light and pots. One plant is given water that has been
Bezzdna [24]

Answer:

Water

Message me if you need a better explanation! :)

5 0
2 years ago
what is the food chain in a temperate ocean(Describe the general food interaction of plants and animals. Draw an example.) pleas
drek231 [11]
This should help. It is attached right below.

5 0
2 years ago
Urgent!!!!! How can a mutation benefit an organism and its descendants? Provide an example.
Mashcka [7]
A mutation can allow a organism to adapt to the environment and example can be the case of the peppered moth which has two variations a white colored one and a black colored one. The white colored ones were able to survive better that the darker ones because of how they were able to camouflage with the lichen located in the trees. However, after a while smoke particles that were released by industries darkened the trunk of the trees making the white moths visible and allowing the darker colored ones to survive. Another example can be on how organism can be resistant to bacteria this allows the animal to survive and reproduce offspring with the same mutation. I hope this helps...
6 0
3 years ago
Which of the following structures or systems is correctly paired with its function? (2 points)
krok68 [10]

Answer:

central nervous system

Explanation:

The central nervous system is made up of the brain and spinal cord which carry out the function of processing information about the environment using the five senses and sends out your bodies response. such as if your finger touched the hot stove, that signal gets sent to your brain which sends a signal to your spinal cord telling your arm to pull away from the hot surface

4 0
2 years ago
Other questions:
  • Which statement best describes scientists who contributed to the current body of scientific knowledge
    12·1 answer
  • Which component is missing from the process of photosynthesis? Carbon Dioxide + ________ + Sunlight → Glucose + Oxygen Light Ene
    9·2 answers
  • . Why do astronomers and other scientists believe that there may be a black hole at the center of the Milky Way?
    14·1 answer
  • Oceanic crust is best described as
    13·2 answers
  • Don recorded his food intake for a week and then used a computerized dietary analysis program to analyze his diet record. accord
    15·1 answer
  • Which of the following does NOT describe catalysts?
    12·1 answer
  • Which of the following describes a factor that would limit the carrying capacity of a population within a particular ecosystem?
    10·2 answers
  • 12 Which direction does blood flow in arteries?​
    5·2 answers
  • Are the oldest rock on the highest or lowest stratum?​
    12·2 answers
  • Write a short essay on a local natural resource that is mined in your region and the uses that come from this mineral. List ways
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!